Lucien Cartier-Tilet
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106 lines
2.3 KiB
Org Mode
106 lines
2.3 KiB
Org Mode
#+TITLE: Rust Formatter
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#+setupfile: headers
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#+PROPERTY: header-args:toml :mkdirp yes :tangle ~/.rustfmt.toml
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* Rust Formatter
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The ~.rustfmt.toml~ file located in the ~$HOME~ directory is a global
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configuration file for Rust’s code formatters, such as ~rustfmt~. In this file,
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you can find how my Rust code is always formatted.
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** General settings
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First, we are using the 2018 edition of Rust.
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#+BEGIN_SRC toml
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edition = "2018"
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#+END_SRC
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Put single-expression functions on a single line.
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#+BEGIN_SRC toml
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fn_single_line = true
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#+END_SRC
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Format string literals where necessary.
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#+BEGIN_SRC toml
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format_strings = true
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#+END_SRC
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Maximum width of each line
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#+BEGIN_SRC toml
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max_width = 80
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#+END_SRC
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Merge multiple imports into a single nested import.
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#+BEGIN_SRC toml
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merge_imports = true
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#+END_SRC
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** Structs and Enums
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The maximum length of enum variant having discriminant, that gets
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vertically aligned with others. Variants without discriminants would
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be ignored for the purpose of alignment.
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Note that this is not how much whitespace is inserted, but instead the
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longest variant name that doesn't get ignored when aligning.
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#+BEGIN_SRC toml
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enum_discrim_align_threshold = 20
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#+END_SRC
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The maximum diff of width between struct fields to be aligned with
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each other.
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#+BEGIN_SRC toml
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struct_field_align_threshold = 20
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#+END_SRC
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Reorder =impl= items. =type= and =const= are put first, then macros and
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methods.
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#+BEGIN_SRC toml
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reorder_impl_items = true
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#+END_SRC
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** Comments
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Convert ~/* */~ comments to ~//~ comments where possible.
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#+BEGIN_SRC toml
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normalize_comments = true
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#+END_SRC
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Break comments to fit on the line.
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#+BEGIN_SRC toml
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wrap_comments = true
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#+END_SRC
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Report ~FIXME~ items in comments.
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#+BEGIN_SRC toml
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report_fixme = "Always"
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#+END_SRC
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Report ~TODO~ items in comments.
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#+BEGIN_SRC toml
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todo = "Always"
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#+END_SRC
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** Documentation
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Format code snippet included in doc comments.
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#+BEGIN_SRC toml
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format_code_in_doc_comments = true
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#+END_SRC
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Convert ~#![doc]~ and ~#[doc]~ attributes to ~//!~ and ~///~ doc comments.
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#+BEGIN_SRC toml
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normalize_doc_attributes = true
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#+END_SRC
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** Whitespace
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Use tab characters for indentation, spaces for alignment.
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#+BEGIN_SRC toml
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hard_tabs = false
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#+END_SRC
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Number of spaces per tab.
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#+BEGIN_SRC toml
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tab_spaces = 4
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#+END_SRC
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I want newlines to always be Unix style.
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#+BEGIN_SRC toml
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newline_style = "Unix"
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#+END_SRC
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